Swapped "sign up" and "sign in" links on navbar
Merge pull request #167 from attlebish/signupswap

Swapped "sign up" and "sign in" links on navbar
Put avatar on settings page with link to gravatar.com
Merge pull request #168 from attlebish/gravatarlink

Put avatar on settings page with link to gravatar.com
Fixed link to sender profile in notifications
Merge pull request #169 from attlebish/fixsenderlink

Fixed link to sender profile in notifications